Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 2 - Section 2.2 - An Introduction to Problem Solving - Exercise Set - Page 66: 36

Answer

In 2010, the predicted percent increase since 2009 is 45%. In 2011, the predicted percent increase since 2009 is 100%. In 2012, the predicted percent increase since 2009 is 155%.

Work Step by Step

$x+2x+10+4x-25=300$ $7x=315$ $x=45$ In 2010, the predicted percent increase since 2009 is 45%. $2x+10=100$ In 2011, the predicted percent increase since 2009 is 100%. $4x-25=155$ In 2012, the predicted percent increase since 2009 is 155%.
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